Well, Transcendental meditation definetely has tangible benefits physically, mentally, intellectually, emotionally, and socially and spiritually. You can see this in Wikipedia itself and in the website for Transcendental meditation with scientific research, which clearly proves the effectiveness of Transcendental Meditation. If he charges money, I don't think there is anything wrong in it. We need money to live and no one can survive without money. Also Maharishi is also involved in many projects that involves money and hence the fees for his meditation. However considering the fact that it is highly effective, I don't think why people should grudge this. You certainly have to pay money to see a doctor, or if you are in a health club or fitness club. Why should TM be any different, especially when they are giving a great product which is clearly certified by scientific research?